搜索结果: 1-14 共查到“yttrium”相关记录14条 . 查询时间(0.093 秒)
Measurement of temperature changes during cavitation generated by an erbium, chromium: Yttrium, scandium, gallium garnet laser
Cavitation Heat Laser-Driven Irrigation Temperature Changes
2013/2/19
Aim: The present study evaluated the magnitude of temperature changes in the tooth during cavitation produced by an Er,Cr:YSGG laser. Methods: The root canal of a single extracted maxillary canine was...
First-principles Study on the Electronic Structure of Novel Titanium Yttrium Mixed-metal Nitride Clusterfullerene
TiY2N@C80 Electronic structure Doping Chemical modification First-principles calculation
2012/4/5
We present a first-principles study on the geometric, vibrational and electronic properties of a novel Y-based non-scandium mixed-metal nitride clusterfullerene (TiY2N@C80). Theoretical results indica...
An extremely peculiar hot subdwarf with a ten-thousand-fold excess of zirconium, yttrium, and strontium
hot subdwarf ten-thousand-fold
2011/1/10
Helium-rich subdwarf B (He-sdB) stars represent a small group of low-mass hot stars with luminosities greater than those of conventional subdwarf B stars, and effective temperatures lower than those o...
Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions
calcium carbonates seawater Y/Ho ratios covalency
2017/8/10
The partitioning of Y and Ho between CaCO3 (calcite and aragonite respectively) and seawater was experimentally investigated at 25°C and 1 atm. Both Y and Ho were observed to be strongly partitioned i...
Oxidative scavenging of cerium on hydrous Fe oxide: Evidence from the distribution of rare earth elements and yttrium between Fe oxides and Mn oxides in hydrogenetic ferromanganese crusts
rare earth elements yttrium ferromanganese crust Fe oxide Mn oxide Ce oxidation seawater
2017/8/9
The distribution of the rare earths and yttrium (REY) in co-existing hydrous Mn oxides and Fe oxides that form marine hydrogenetic ferromanganese crusts is used to better describe the partitioning and...
Ultra-deep Hydrodesulfurization and Aromatics Hydrogenation of Diesel Fuel over a Pd-Pt Catalyst Supported on Yttrium-modified USY
Palladium-platinum catalyst USY zeolite Yttrium modification
2009/7/23
Bimetallic palladium-platinum catalyst supported on yttrium-modified ultrastable Y (USY) zeolite, Pd-Pt/Y-USY, showed high activity and stability for deep hydrodesulfurization (HDS) and hydrodearomat...
Lanthanum, cerium, praseodymium and yttrium in waters in an upland acidic and acid sensitive environment, mid-Wales
upland acidic mid-Wales acid sensitive environment
2009/5/18
The less than 0.45 mm filterable lanthanum (La), cerium (Ce), praseodymium (Pr) and yttrium (Y) concentrations in rainfall, cloud water, stream and groundwater in the upper River Severn catchments of ...
Acid Resistance of Erbium-doped Yttrium Aluminum Garnet Laser–Treated and Phosphoric Acid–Etched Enamels
Er YAG laser Phosphoric acid XRD ICP-AES pH-cycling EPMA
2008/11/24
Objective: To compare the effects of erbium-doped yttrium aluminum garnet (Er:YAG) laser ablation and of phosphoric acid etching on the in vitro acid resistance of bovine enamel.
Materials and Meth...
Etching Enamel for Orthodontics with an Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet Laser System
Laser irradiation SEM examination Shear bond strength
2008/11/3
Objective: To test the shear bond strength, surface characteristics, and fracture mode of brackets that are bonded to enamel etched with an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG...
Geochemistry of REE and yttrium in hydrothermal fluids from the Endeavour segment, Juan de Fuca Ridge
hydrothermal fluids rare earth element Juan de Fuca Ridge species abundance Europium anomaly
2017/8/10
Rare earth element and yttrium in hydrothermal fluids sampled from six high temperature vents and two diffuse flow sites on the Endeavour segment, Juan de Fuca Ridge by US-CHINA Joint Deep Dive Cruise...
Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution
Formation of Yttrium(III) Complexes Salicylic Acid Derivatives Aqueous Solution
2010/4/19
Complexes of yttrium(III) formed with 5-sulphosalicylic acid, 5-SSA (H3L), and 5-nitrosalicylic acid, 5-NSA (H2L), were investigated in 0.1 mol.dm-3 sodium perchlorate ionic medium at 25.0 \pm 0.1 °C ...
Stabilities of Complexes of Scandium(III) and Yttrium(III) With Salicylic Acid
Stabilities Complexes Scandium(III) Yttrium(III) Salicylic Acid
2010/6/29
The interactions of Sc(III) and Y(III) ions with salicyclic acid, SA (H2L), were studied in aqueous solution by means of potentiometric and spectroscopic methods. The binding of SA occurs in Y(III):SA...
Stabilities of Complexes of Scandium(III) and Yttrium(III) With Catechol Derivatives
Stabilities Complexes Scandium(III) Yttrium(III) Catechol Derivatives
2010/6/28
The interactions of scandium(III) and yttrium(III) ions with catechol derivatives; catechol(H2L, CAT), 4-nitrocatechol(H2L, 4NCAT) and 2,3-dihydroxynaphthalene- 6-sulphonic acid(H2L, DHN) were investi...
Study of Magnetic Non-Uniformities in Yttrium-Iron Garnet by the Measuring Method of Magneto-Optical Susceptibility
Magnetic Non-Uniformities Yttrium-Iron Garnet Magneto-Optical Susceptibility
2010/4/19
Study of magnetic non-uniformities in yttrium-iron garnet by the measuring in method of magneto-optical susceptibility in laser beam with the wave length of l = 1.15 m m.